Gave problem handling finer granularity within loops

test/xorriso.h

@@ -58,11 +58,15 @@ int Xorriso_msgs_submit(struct XorrisO *xorriso,
     @param xorriso    The environment handle
     @param ret        The return value of the prviously called option function
     @param flag       bit0= do not issue own event messages
+                      bit1= take xorriso->request_to_abort as reason for abort
     @return           Gives the advice:
                         2= pardon was given, go on
                         1= no problem, go on
                         0= function failed but xorriso would not abort, go on
                        <0= do abort
+                           -1 = due to xorriso->problem_status
+                                or due to ret<0
+                           -2 = due to xorriso->request_to_abort
 */
 int Xorriso_eval_problem_status(struct XorrisO *xorriso, int ret, int flag);